I have no clue what it is, but my kids pee A LOT during the night. We're sure to change their diapers, or have them try using the toilet before bed. No leaks, no washing sheets everyday, no disinfecting the bed...Life is Good! haha

We've used this diaper for both our daughter and son. With our daughter, it's the only diaper that worked to keep her from leaking at night...which meant a good night sleep for everyone. We went straight to these diapers for my son.

These are the only diapers I use for my twin girls. Not only do they work great at night, but they are fantastic for daytime use as well. My girls never leak through these and I wouldn't use any other brand !

my child would always get his sheets wet because he'd leak at night. I'm so glad I got these diapers and they are my number 1 go-to diaper for long trips and nighttime!

I love this product, and highly recommend it to anyone with young children. As soon as my son slept through the night I started using the Overnites. Even though my son tosses and turns this diaper stays put. No messes or leaks.

My son does great with these at night. I usually changed him to there over night huggies and they seem to absorb the extra when he falls asleep after a bottle of milk.

These diapers saved me from washing laundry every day!! We tried every other supposedly absorbant diaper and this is the only one that held it all in all night!!

My daughter would wake up in a wet bed every morning until we found this product. Haven't had a problem since! They fit well and are super absorbent. No other brand has stood up to Huggies!

I love these diapers my son was wearing pull ups to bed and was weting right through so i chaged him back to these and it solved the problem well mostly he is still needs a diaper at night. but no more wet sheets.

We started using these diapers after my daughter started eating more and drinking more milk. She would soak through every time, it was getting hard for her to sleep through the night. I recommend this to everyone!!!